Inverters could also provide “virtual inertia” which help to stabilize the grid frequency. However most of today’s inverters don’t have it, or it’s disabled.
This means we don’t need solar powered flywheels, which are inherently inefficient, we just need software (edit: and batteries of course) more or less.
I’d focus on Wi-Fi rather than BLE based on your stack trace.
You said in the previous post that even with WiFi and Bluetooth off it still happens, but did you turn off WiFi scanning as well?
Wi-Fi scanning happens even when WiFi is off, and your stack trace refers to WiFi scanning specifically.
Check your settings carefully for the WiFi scanning option. It’s really only used for tracking anyway.